USDJPY broke below 79.57 support and reached as low as 78.46. Deeper decline is expected next week, and next target would be at 77.50 area. Resistance is at 80.00, only break above this level could indicate that a cycle bottom has been formed on daily chart, and the fall from 85.51 has completed.
For long term analysis, USDJPY is in consolidation of long term downtrend from 124.16 (2007 high). Range trading between 76.40 and 90.00 is expected in next several months.